openframeworks example: convert std::string with an external file --> std::wstring

ofXml_to_std::wstring.h

#include <codecvt>
#include "ofxTrueTypeFontUL2.h" // https://github.com/kentaroid/ofxTrueTypeFontUL2

std::wstring text;
ofxTrueTypeFontUL2 typeface;

void ofApp::setup() {
  ofXml xml("multilingual_words.xml"); // have to be saved as UTF-8 with BOM
  // do something with xml...
  std::string text_from_xml = xml.getAttribute("my_chinese_word");
  std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> cv;
  text = cv.from_bytes(text_from_xml);
  
//  typeface.loadFont("my_chinese_font.otf", 20);
}

void draw() {
//  typeface.drawString(text, ofGetMouseX(), ofGetMouseY());
}